USB 3.0 Adopts AgreementUSB 3.0 Adopts Agreement (.pdf file format, size 146 KB) The USB 3.0 acceptance agreement allows a sub-treated company to participate in a reciprocal, unlicensed licensing agreement for compliant products. This agreement applies to both USB 3.0, USB 3.1 and USB 3.2 specifications, including USB Power Delivery and USB Type CTM Cable and Connector Specifications. A USB 3.0 Adopters agreement is only effective if it is received within one (1) year after the first sale of products containing « compliant products ». For more information, see the USB 3.0 adoption agreement. For a product developer, using USB requires a complex protocol and involves a « smart » controller in the device. Developers of USB devices for public sale generally must receive a USB IDENTIFIANT that requires them to pay a fee to the USB implementation forum. Developers of products using USB specifications must sign an agreement with the Imlementers Forum. The use of USB logos on the product requires an annual fee and membership in the organization.  Users can prove that their products are in compliance with users` consent. USB mice and keyboards can usually be used with older computers that have PS/2 ports using a small USB-zu-PS/2 adapter. For mice and two-protocol keyboards, an adapter does not contain a logical circuit: the USB hardware in the keyboard or mouse was designed to know if it is connected to a USB or PS/2 port and communicate via the corresponding protocol. Converters that connect PS/2 keyboards and mice (usually one of each) to a USB port also exist.  These devices provide the system with two HID terminals and use a microcontroller to perform a two-way translation of the data between the two standards.
In December 2014, USB-IF USB 3.1, USB Power Delivery 2.0 and USB-C submitted specifications to the CIS (TC 100 – audio, video and multimedia systems and multimedia devices) to be included in the international CEI 62680 (Universal Bus Interfaces for Data and Power) standard, currently based on USB 2.0.  Describes the internal cable interface for USB 3.0 connections in an office that focuses on the electrical and mechanical requirements of the connector and cable assembly. The detailed girl card or direct cable pass is not found in this documentation. These differences, as well as others, reflect the different design destinations of the two buses: usb was designed for simplicity and low costs, while FireWire was designed for high performance, especially in time-critical applications such as audio and video. Although FireWire 400 is similar in theoretical maximum transmission speed, it is faster than USB 2.0 with high bandwidth in real use, especially for use with high bandwidth, for example. B for external hard drives.     The new FireWire 800 standard is twice as fast as FireWire 400 and faster than USB 2.0 High-Bandwidth both theoretically and practically.  However, the benefits of FireWire`s speed are based on low-level techniques such as Access to Direct Memory (DMA), which have created opportunities for security feats such as the DMA attack.